Hachimitsu Academy, once an all-girls school, has become co-ed, and teen Kiyoshi is one of five boys to enroll. When he is caught peeping, Kiyoshi is sent to the schools prison, where his punishment is carried out.

The start of Hanae Ashiya's high school career has not been easy-he has spent all of the first week in the infirmary, and his inexplicable condition is only getting worse. The cause of his ...

In a time of war two countries fight for their own ideals using any means necessary. Susumu Tokimune is a new recruit who in his first battle encounters an engineer with a new machine called Argevollen, which will hopefully bring peace.

High school student Homura Suzuko has returned to Ikebukuro, the town where she grew up. "We're friends forever!" She treasures her memories of her old friend from when she was little, ...

The seas were taken over by a mysterious enemy known only as "sirens". Humans then created humanoid female embodiments of real life warships in order to combat the sirens and take back ...